Answer:
a. every muscle has a varying number of motor units so they can generate different frequencies.
e. each motor unit can innervate a different number of muscle fibers.
Explanation:
Electromyography (EMG) is a diagnostic procedure used to measure the response of muscles and nerves to electrical activity. A motor unit is composed of one motor neuron and muscle fibers it innervates. The number of muscle fibers in each motor unit can vary among different muscles and even among motor units within the same muscle. Each motor unit is known to innervate a variable number of muscle fibers, but each single muscle fiber is innervated by only one motor.
An electromyography (EMG) read out has all motor units looking different
because
Every muscle has a varying number of motor units so they cangenerate different frequencies
Each motor unit can innervate a different number of muscle fibers.Electromyography (EMG) is used in diagnostics for measuring the
relationship between muscles and nerves through responses to electrical
activity.
The body has muscles with no constant number of motor units as it varies.
Each motor unit also supply nerves to different number of muscle fibers
which explains the difference in motor units during electromyography.
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A researcher exposes a bacterial culture to UV radiation and then subjects it to progressively higher temperatures. As the temperature increases, the bacteria have a progressively harder time surviving. Analysis of the dead bacteria reveals large amounts of misfolded, aggregated proteins compared to wild-type control bacteria exposed to the same temperature increase. Which of the following is a plausible explanation for the data?
A. The ribosomes are mutated and are non-functional.
B. The initiator tRNA (fMet) has been mutated and is non-functional.
C. Molecular chaperones have been mutated.
D. DNA polymerase is mutated and non-functional.
Answer:
C. Molecular chaperones have been mutated.
Explanation:
In prokaryotes; transcription and translation occur consecutively. Protein doubling additionally happens following the translation. The heat stun proteins or molecular chaperones are imperative to assume a part in the appropriate collapsing of the protein. At high-ranging temperatures, the protein misfolding can be ascribed to a change in mutation of the molecular chaperones.
Which wavelength is reflected off plants stems and leaves
Which of the following correctly describes a cell that is haploid. There is more then one correct answer.
A cell with a single set of chromosomes
Includes zygotes
In humans contains 46 chromosomes
In humans contains 23 chromosomes
All cells except gametes
Includes gametes
A cell with two sets of chromosomes
Explanation:
a cell with a single set of chromosomes
in humans contain 23 chromosomes
includes gametes
. Which of the following would you expect to have cells with a cell membrane? *
1 point
panda bears
pine trees
spiders
all of the above
Answer:
All of the above!
Explanation:
I'm just sure it's that.
Answer:
The answer is all of the above
Explanation:
Both plant and animal cells have a cell membrane.
Describe three ways in which economies are
likely to be affected by climate change
Answer:
1. Climate change affect the geography within which economy of the world operate
2. It changes the comfortability of human within the global industry
3. Growth Zone is affected
Explanation:
1. Climate change affect the geography within which economy of the world operate: economic of the world are affected by change in climatic condition in the since that there is shift in the usual period of seasons. For example, taken Nigeria as a region in West Africa, rainfall is expected to start around March in almost all part of the country, however, due to climate change, some part don't still have rain till May. This causes a shift in farmers plan and affect the supply of farm produce to the local market and to the global market, in turn affecting the gross domestic product of the country.
2. It changes the comfortability of human within the global industry. Take for example, fossil fuel, it is part of human being to address some unfavourable conditions among which is climate change which causes global warming, during this period, the way industries and people uses fossil fuel are been changed and it have direct effect to global economy.
3. Growth Zone is affected: change in climatic condition changes world economy growth zones. Thus could be seen in transportation sector, when the water level is affected, international movement of cargoes by ship are affect and hence, some trades agreements are altered thereby changing the growth zone.
Check all of the following statements that represent an example of predation. Check All That Apply A deer eats the leaves of a tree.A deer eats the leaves of a tree. Barnacles grow on various marine animals.Barnacles grow on various marine animals. A snail eats a clam.A snail eats a clam. A fungus decomposes dead organic matter.A fungus decomposes dead organic matter. A tree absorbs inorganic nutrients from the soil.A tree absorbs inorganic nutrients from the soil.
Answer:
- A deer eats the leaves of a tree.
- A snail eats a clam
Explanation:
Predation is one of the mode of feedings used by certain organisms. It is a relationship between two organisms in which one of the organisms called PREDATOR kills/harms and feed on the other organism called PREY.
According to this question, the two examples that represent predation are as follows:
- A deer eats the leaves of a tree; the deer, which is the PREDATOR feeds on a tree plant, which is the PREY.
- A snail eats a clam; the snail is the PREDATOR in this case and it harms the clam (PREY) by killing and feeding on it.
Answer:
A deer eats the leaves of a tree.
A snail eats a clam
Explanation:
E2023
Matter is passed from the living part of an ecosystem to the non-living part when which of the following takes
place?
A. Plants absorb gases
B. Plants decompose
C. Animals eat plants
D. Animals drink water
Proteins on the surface of a human cell and on a bird influenza virus are represented in the diagram below. Describe a change in the bird influenza virus that would allow it to infect this human cell.
Answer:
Viral proteins can modify the most superficial portion in such a way that it is complementary to the receptor of the human cell.
Generally this happens due to a genetic recombination between an avian virus and a human virus within the respiratory epithelium of the pig: this process underlies the emergence of new, more virulent strains of the influenza virus and underlies the emergence of influenza pandemics
the distance covered by a bus is measured by an instrument called
Answer:
Odometer
It is measured by an instrument called odometer.
what is self-imcompatibilty???
Explanation:
Hope it will help you to solve your question.
Answer:
hiiiiiiiiiiiiiiiiiiii
Explanation:
understand
Similarities between tridax plant and elephant grass
Answer:
ok so basically they just
what happen to LH and FSH during ovulatory phase???
Answer:
LH and FSH also trigger an increase in the production of the female hormone estrogen .as estrogen rise,like a switch, it turns offthe production of follicle stimulating hormone.
Question:
The phenylketonuria occurs in 1 of 10,000 individuals in a population. It is
caused by an autosomal recessive allele. Calculate the frequency of heterozygotes
in the population.
Answer:
10000 divided by 1 and then that answer
Do you think humans would be
as dominant if the dinosaurs
were still present?
Answer:
Probably not, as we might have evolved to become prey instead of predator
Answer:
i dont think so.
Explanation:
the dinosaurs would've already ate us, and crushed the cities. dinosaurs are too dangerous for us. especially the T-rex.
Explain why a person with brain damage may be able to see perfectly well, but not recognize faces.
A salt marsh community includes egrets, gulls, and marsh crabs living together in a salt marsh. What does one female egret represent?
Answer:
It is a tool for keeping population in equilibrium state.
Explanation:
One female egret represents that she is a tool for the continuity of its breed or species because female egret lays eggs and reared their offspring in order to maintain its generation in that salt marsh area. These female egrets are the essential part of this salt marsh ecosystem due to the ability to control the population of other organisms through feeding behaviour. These female egrets helps in maintaining the equilibrium of the ecosystem by constantly producing baby egrets.
The genetic material of a bacterial cell is:
None of the above
DNA is present in chromosomes
Double stranded circular DNA
A single stranded DNA molecule
Answer:
DNA is present in chromosomes
how many degrees in a triangle
Answer:
The internal degrees in a triangle add up to 180
Explanation:
Answer:
Three are three angles in a triangle which all add up to exactly 180 degrees
Explanation:
A plant is wilting in response to internal stimuli. What action can you take to make the plant stand tall?
F. Place a towel over the plant.
G. Put it in a pot with another plant.
H. Place it in a dark closet.
J. Provide water for the plant.
Answer:
It is either J or G my answer would be G
~Tori
GIVING BRAINLIEST ANSWER CORRECTLY FOR 40 POINTS
List 3 people from the history of biotechnology and write one sentence about each persons contribution
Answer:
Karl Ereky
Explanation:
He discovered it
. Students decide to remove the litter from an abandoned park and plant trees. Which of the following observations provides the best evidence that the action of the students has had a positive effect on the health of the park ecosystem?
A. The number of human visitors decreases.
B.The level of yearly precipitation increases.
C.The number and diversity of animals increases.
D.The average daily high temperature decreases.
Answer:
c
Explanation:
Question 4
Which of the following is not considered hazardous waste?
A
dead batteries such as those used in flashlights and radios
B
rotting meat and other food waste
С
metals such as lead and mercury
D
b rotting meat and other food waste
Define the following term:
1. Pinhole camera
2. Screen
CAN SOMEONE HELPP ME :(
The function of the hepatic portal circulation is to ________. The function of the hepatic portal circulation is to ________. return glucose to the general circulation when blood sugar is low carry toxins to the kidney for disposal through the urinary tract distribute hormones throughout the body collect absorbed nutrients for metabolic processing in the liver
Answer:
The correct answer is ''collect absorbed nutrients for metabolic processing in the liver.''
Explanation:
Portal circulation is called that system that is between two large capillary beds, represented by the gastrointestinal organs, pancreas and spleen on the one hand, and the liver on the other. Hence, any venous system of the organism that is located between two capillary territories is called "portal system".The hepatic portal vein collects the deoxygenated blood from the gastrointestinal system, spleen and pancreas, this blood is venous and comes deoxygenated, in addition to being loaded with the nutrients absorbed in the digestive process, so it is a blood subjected to a high overload, but that quickly, thanks to its distribution through the liver, it will be bypassed to various chemical processes to extract a large part of the nutrients from it, and purify and eliminate toxins.
The function of the hepatic portal circulation is to collect absorbed nutrients for metabolic processing in the liver. Therefore, option D is correct.
The hepatic portal system is also known as the hepatic portal circulation or portal venous system. It is a specialized network of blood vessels that carries blood from the gastrointestinal tract, spleen, and pancreas to the liver. It plays a crucial role in directing nutrient-rich blood from the digestive organs to the liver for processing, storage, and detoxification before it is distributed throughout the rest of the body.
The hepatic portal system allows the liver to regulate the composition of blood coming from the digestive organs before it enters general circulation. Thus, option D is correct.
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Question 7
5
Parents are exposed to hazardous chemicals. How might this affect their
future offspring?
The chemicals could make the parents sick before they have offspring,
The offspring could inherit damaged DNA from the parents.
The offspring could have red hair
•
Answer:
The offsprings could inherit damaged DNA from the parents.
Explanation:
The hazardous chemicals may cause mutations to the DNA.
A drought decreases the water level in Lake Winnipeg. The carrying capacity of the lake decreases.
Limiting factor?
Explain
Answer:
Water, fish
Explanation:
The limiting factors are the water of course and the organisms living in the lake.
A drought decreases the water level in Lake Winnipeg and the carrying capacity of the lake decreases. This is because it is:
Density IndependentWhen something is said to be density Independent with respect to ecology, it means that an external force is able to influence the volume of a habitat, notwithstanding the density.
As a result of this, this particular principle is in place here as a drought which is an external factor is able to affect the size of the water.
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How are taxonomic keys used?
Answer:
A taxonomic key is a simple tool used to identify a specific object. A taxonomic key is one of the most useful tools available to scientists trying to identify an unknown organism. Systematists rely on keys to help identify known organisms and determine whether they have discovered a new organism entirely.
Explanation: Hope this helps
A weather map is shown for the southern United States. According to the map, tornadoes are most closely associated with which
weather event?
A)
blizzards
B)
cyclones
hurricanes
D)
thunderstorms
A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
What is the use of map in weather or garden?
Map is the distribution of flower in a garden. A diagram has been used to label an object so the parts can be recognised easily. A 3-D model has a xerox copy of the object in a three dimensional figure . An information a word so one can assume infographic . A map helps to represent the layout of the land or distribution of flower in garden.
Geographic information system (GIS) has been analyzed and visualize data for geographic positions on Earth's surface. GIS has computer - based tool that examines spatial relationships, pattern and trends. By connecting geography with data, GIS better understands data using a geographic context.
Therefore, A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.
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what is an amino acid